on a similar program in canada. at least 15 peop have killed themselves on metro property since the start of last year. the most recent was last month. > still ahead on news4 at 5:00, you may have to pay to drive on i-95. >> this is chris gordon. with the d.c. firefighter caught out of uniform preparing food for a retirement party. >>> targeting tour guides. the new regular tligs make sure yeah, but... what.. happened to the ck there? well, here's the thing: this was the only "sporty two-seater" they hadn my budget. uh-huh. and the seats go all the way back. (announcer) settling for less is not smart. what is smart is getting more car for your money at carmax. for the money you'd spend on a stripped down new car, you could get a fully loaded, r at carmax. now morehan ever, the smart choice is carmax. the way car buying should be. >>> we are continuing to learn more out the arlington, virginia man suspected of shooting a doctor at johns hopkins hospital up in baltimore. he was apparently distraught about his mother's medical condition. >> she joins us live from arlington with more on this.